.page-news {
  --pn-gap: clamp(18px, 2.6vw, 36px);
  --pn-radius: 22px;
  --pn-grid-line: rgba(198, 210, 221, 0.08);
  background: var(--paper);
  color: var(--ink);
}

/* ---------- 首屏 ---------- */
.page-news .column-hero {
  position: relative;
  padding: clamp(20px, 3vw, 32px) 0 clamp(32px, 5vw, 58px);
  color: var(--c-ivory);
  background:
    radial-gradient(120% 92% at 84% -6%, rgba(47, 123, 181, 0.42), transparent 58%),
    linear-gradient(158deg, var(--c-deep) 0%, var(--c-midnight) 56%, var(--c-abyss) 100%);
  border-bottom-left-radius: var(--r-xl);
  border-bottom-right-radius: var(--r-xl);
  overflow: hidden;
}

.page-news .column-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--pn-grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--pn-grid-line) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.8), transparent 80%);
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.8), transparent 80%);
  pointer-events: none;
}

.page-news .column-hero .wrap {
  position: relative;
  z-index: 1;
}

.page-news .column-hero .breadcrumbs {
  color: var(--c-silver);
  font-size: 13px;
}

.page-news .column-hero .breadcrumbs a {
  color: var(--c-silver);
  text-decoration: none;
}

.page-news .column-hero .breadcrumbs a:hover {
  color: var(--c-lime);
}

.page-news .hero-grid {
  display: grid;
  gap: clamp(24px, 4vw, 46px);
  margin-top: clamp(18px, 3vw, 34px);
}

@media (min-width: 900px) {
  .page-news .hero-grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
    align-items: center;
  }
}

.page-news .hero-kicker {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin: 0 0 18px;
}

.page-news .hero-issue {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--c-mint);
}

.page-news .hero-copy h1 {
  margin: 0 0 18px;
  font-size: clamp(32px, 6vw, 62px);
  line-height: 1.1;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--c-ivory);
}

.page-news .hero-lede {
  margin: 0 0 clamp(22px, 3vw, 32px);
  max-width: 58ch;
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.8;
  color: var(--c-silver);
}

.page-news .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-news .hero-media {
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: 0 30px 60px -34px rgba(8, 23, 38, 0.9);
}

/* ---------- 横向索引条 ---------- */
.page-news .index-strip {
  margin-top: clamp(30px, 4.4vw, 50px);
  padding-top: 18px;
  border-top: 1px solid var(--line-dark);
}

.page-news .index-strip-title {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--c-slate);
}

.page-news .index-track {
  display: flex;
  gap: 10px;
  margin: 0;
  padding: 2px 2px 12px;
  list-style: none;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: rgba(163, 230, 53, 0.5) transparent;
}

.page-news .index-track::-webkit-scrollbar {
  height: 4px;
}

.page-news .index-track::-webkit-scrollbar-thumb {
  background: rgba(163, 230, 53, 0.5);
  border-radius: var(--r-pill);
}

.page-news .index-track li {
  flex: 0 0 auto;
  scroll-snap-align: start;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 18px;
  border-radius: var(--r-pill);
  border: 1px solid var(--line-dark);
  background: rgba(234, 241, 246, 0.06);
  color: var(--c-mist);
  font-size: 14px;
  white-space: nowrap;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-news .index-track li:hover {
  background: rgba(163, 230, 53, 0.14);
  border-color: rgba(163, 230, 53, 0.45);
}

.page-news .index-track .index-no {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--c-lime);
}

/* ---------- 正文骨架 ---------- */
.page-news .column-main {
  padding: clamp(40px, 6vw, 80px) 0 clamp(56px, 8vw, 96px);
}

.page-news .shell {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
  align-items: start;
}

@media (min-width: 1081px) {
  .page-news .shell {
    grid-template-columns: 228px minmax(0, 1fr);
    gap: clamp(36px, 4.6vw, 64px);
  }
}

.page-news .rail {
  min-width: 0;
}

@media (min-width: 1081px) {
  .page-news .rail {
    position: sticky;
    top: calc(var(--header-h) + 28px);
    align-self: start;
  }
}

.page-news .rail-title {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--c-slate);
}

.page-news .rail-list {
  display: grid;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
}

@media (max-width: 1080px) {
  .page-news .rail-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
  }
}

.page-news .rail-link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 14px;
  border-left: 2px solid transparent;
  border-radius: var(--r-sm);
  font-size: 14px;
  line-height: 1.4;
  color: var(--ink-mute);
  text-decoration: none;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

@media (max-width: 1080px) {
  .page-news .rail-link {
    border-left: 0;
    border: 1px solid var(--line);
    border-radius: var(--r-pill);
    padding: 8px 16px;
    background: var(--paper-alt);
  }
}

.page-news .rail-link:hover {
  background: var(--paper-alt);
  color: var(--ink);
}

.page-news .rail-index {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--c-azure);
}

.page-news .rail-link[aria-current="true"] {
  background: var(--c-deep);
  color: var(--c-ivory);
  border-left-color: var(--c-lime);
}

@media (max-width: 1080px) {
  .page-news .rail-link[aria-current="true"] {
    border-color: var(--c-deep);
  }
}

.page-news .rail-link[aria-current="true"] .rail-index {
  color: var(--c-lime);
}

.page-news .news-body {
  min-width: 0;
  display: grid;
  gap: clamp(56px, 8vw, 96px);
}

/* ---------- 章节通用 ---------- */
.page-news .news-section {
  scroll-margin-top: calc(var(--header-h) + 26px);
}

.page-news .section-head {
  max-width: 74ch;
}

.page-news .section-index {
  margin: 0 0 8px;
  font-size: 13px;
  letter-spacing: 0.24em;
  color: var(--c-azure);
}

.page-news .section-head h2 {
  margin: 0 0 14px;
  font-size: clamp(26px, 3.6vw, 40px);
  line-height: 1.18;
  font-weight: 800;
  letter-spacing: -0.015em;
  color: var(--ink);
}

.page-news .section-lede {
  margin: 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--ink-soft);
}

.page-news .news-section .media-frame {
  margin: clamp(24px, 3.4vw, 38px) 0 0;
  border-radius: var(--r-lg);
  overflow: hidden;
}

/* ---------- 01 本月栏目观察 ---------- */
.page-news .obs-layout {
  display: grid;
  gap: clamp(22px, 3vw, 38px);
  margin-top: clamp(26px, 3.6vw, 42px);
}

@media (min-width: 1024px) {
  .page-news .obs-layout {
    grid-template-columns: minmax(0, 0.34fr) minmax(0, 1fr);
    align-items: start;
  }
}

.page-news .obs-visual {
  margin: 0;
  border-radius: var(--r-lg);
  overflow: hidden;
}

@media (min-width: 1024px) {
  .page-news .obs-visual {
    position: sticky;
    top: calc(var(--header-h) + 30px);
  }
}

.page-news .observe-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-news .observe-item {
  display: grid;
  gap: 12px;
  padding: clamp(20px, 2.6vw, 28px) clamp(14px, 1.8vw, 20px);
  border-bottom: 1px solid var(--line);
  border-radius: var(--r-md);
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-news .observe-item:first-child {
  border-top: 1px solid var(--line);
}

.page-news .observe-item:hover {
  background: var(--paper-alt);
  border-color: transparent;
}

@media (min-width: 620px) {
  .page-news .observe-item {
    grid-template-columns: 122px minmax(0, 1fr);
    gap: clamp(16px, 2.2vw, 28px);
    align-items: start;
  }
}

.page-news .obs-side {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

@media (min-width: 620px) {
  .page-news .obs-side {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
}

.page-news .obs-time {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--c-slate);
}

.page-news .obs-main {
  min-width: 0;
}

.page-news .obs-title {
  margin: 0 0 8px;
  font-size: clamp(17px, 1.6vw, 19px);
  line-height: 1.5;
  font-weight: 700;
  color: var(--ink);
}

.page-news .obs-summary {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ink-soft);
}

@media (hover: hover) and (pointer: fine) {
  .page-news .obs-summary {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .page-news .observe-item:hover .obs-summary {
    -webkit-line-clamp: 6;
  }
}

/* ---------- 02 版本记录 ---------- */
.page-news .version-timeline {
  margin: clamp(24px, 3.4vw, 38px) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.page-news .version-item {
  display: grid;
  gap: 10px;
  padding: clamp(18px, 2.4vw, 24px);
  border-radius: var(--r-md);
  background: var(--paper-alt);
  border-left: 3px solid var(--c-silver);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

@media (min-width: 720px) {
  .page-news .version-item {
    grid-template-columns: 148px minmax(0, 1fr);
    gap: 24px;
    align-items: start;
  }
}

.page-news .version-item:hover {
  transform: translateX(4px);
}

.page-news .version-item--current {
  background: linear-gradient(120deg, rgba(163, 230, 53, 0.16), rgba(94, 211, 192, 0.08));
  border-left-color: var(--c-lime);
}

.page-news .version-head {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-news .version-no {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--c-deep);
}

.page-news .version-item--current .version-no {
  color: var(--c-deep);
}

.page-news .version-period {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-azure);
}

.page-news .version-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ink-soft);
}

/* ---------- 03 使用场景 ---------- */
.page-news .scene-grid {
  display: grid;
  gap: 16px;
  margin-top: clamp(24px, 3.4vw, 38px);
}

@media (min-width: 720px) {
  .page-news .scene-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-news .scene-card {
  display: grid;
  gap: 10px;
  align-content: start;
  padding: clamp(22px, 2.6vw, 30px);
  border-radius: var(--pn-radius);
  background: var(--c-ivory);
  border: 1px solid var(--line);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-news .scene-card:hover {
  border-color: rgba(47, 123, 181, 0.4);
  box-shadow: 0 18px 34px -26px rgba(11, 33, 54, 0.5);
}

.page-news .scene-no {
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--c-mint);
}

.page-news .scene-title {
  margin: 0;
  font-size: 18px;
  line-height: 1.5;
  font-weight: 700;
  color: var(--ink);
}

.page-news .scene-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ink-soft);
}

/* ---------- 04 专题系列 ---------- */
.page-news .series-grid {
  display: grid;
  gap: 18px;
  margin-top: clamp(24px, 3.4vw, 38px);
}

@media (min-width: 900px) {
  .page-news .series-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }
}

.page-news .series-card {
  position: relative;
  display: grid;
  gap: 12px;
  align-content: start;
  padding: clamp(24px, 2.8vw, 32px);
  border-radius: var(--r-lg);
  background: linear-gradient(165deg, var(--c-deep) 0%, var(--c-midnight) 100%);
  color: var(--c-silver);
  overflow: hidden;
}

.page-news .series-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(198, 210, 221, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(198, 210, 221, 0.07) 1px, transparent 1px);
  background-size: 44px 44px;
  pointer-events: none;
}

.page-news .series-card > * {
  position: relative;
  z-index: 1;
}

.page-news .series-accent {
  width: 46px;
  height: 6px;
  border-radius: var(--r-pill);
  display: block;
}

.page-news .series-accent--lime {
  background: var(--c-lime);
}

.page-news .series-accent--mint {
  background: var(--c-mint);
}

.page-news .series-accent--amber {
  background: var(--c-amber);
}

.page-news .series-meta {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--c-mint);
}

.page-news .series-name {
  margin: 0;
  font-size: 22px;
  line-height: 1.35;
  font-weight: 800;
  color: var(--c-ivory);
}

.page-news .series-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-silver);
}

.page-news .series-note {
  margin: 0;
  padding-top: 10px;
  border-top: 1px solid var(--line-dark);
  font-size: 13px;
  color: var(--c-slate);
}

/* ---------- 05 栏目分类 ---------- */
.page-news .topic-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: clamp(24px, 3.4vw, 38px) 0 0;
  padding: 0;
  list-style: none;
}

.page-news .topic-tag {
  padding: 10px 20px;
  border-radius: var(--r-pill);
  border: 1px solid var(--line);
  background: var(--c-ivory);
  font-size: 14px;
  color: var(--ink-soft);
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-news .topic-tag:hover {
  border-color: rgba(163, 230, 53, 0.8);
  background: rgba(163, 230, 53, 0.14);
  color: var(--ink);
}

.page-news .topic-tag--featured {
  background: var(--c-deep);
  border-color: transparent;
  color: var(--c-ivory);
  font-weight: 600;
}

.page-news .topic-tag--featured:hover {
  background: var(--c-midnight);
  color: var(--c-lime);
}

.page-news .topic-support {
  display: grid;
  gap: 18px;
  margin-top: clamp(26px, 3.4vw, 40px);
  padding: clamp(22px, 2.8vw, 30px);
  border-radius: var(--r-lg);
  background: var(--paper-alt);
  border-left: 3px solid var(--c-azure);
}

@media (min-width: 800px) {
  .page-news .topic-support {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 28px;
  }
}

.page-news .topic-support-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
}

/* ---------- 06 更新节奏 ---------- */
.page-news .cadence-list {
  display: grid;
  gap: 14px;
  margin: clamp(24px, 3.4vw, 38px) 0 0;
}

@media (min-width: 700px) {
  .page-news .cadence-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }
}

.page-news .cadence-item {
  padding: clamp(20px, 2.4vw, 26px);
  border-radius: var(--pn-radius);
  background: var(--c-ivory);
  border: 1px solid var(--line);
}

.page-news .cadence-item dt {
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--c-slate);
}

.page-news .cadence-item dd {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin: 10px 0 10px;
}

.page-news .cadence-num {
  font-size: clamp(28px, 3.4vw, 36px);
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--c-deep);
}

.page-news .cadence-unit {
  font-size: 13px;
  color: var(--c-azure);
}

.page-news .cadence-note {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--ink-soft);
}

.page-news .cadence-cta {
  display: grid;
  gap: 18px;
  margin-top: clamp(28px, 3.6vw, 44px);
  padding: clamp(24px, 3vw, 34px);
  border-radius: var(--r-lg);
  background: linear-gradient(140deg, var(--c-deep) 0%, var(--c-midnight) 100%);
  color: var(--c-silver);
}

@media (min-width: 820px) {
  .page-news .cadence-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 32px;
  }
}

.page-news .cadence-cta-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-silver);
}

.page-news .cadence-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 全局微调 ---------- */
.page-news img {
  display: block;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

@media (prefers-reduced-motion: reduce) {
  .page-news .index-track li,
  .page-news .observe-item,
  .page-news .version-item,
  .page-news .scene-card,
  .page-news .rail-link,
  .page-news .topic-tag {
    transition: none;
  }

  .page-news .version-item:hover {
    transform: none;
  }
}